Computed Properties
Computed properties are variables that compute when they are called
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//Example
var tempFahrenheit: Int = 90
let tempCelsius: Int { return (32 * tempFahrenheit − 32) × 5/9 }
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They are useful for disposable resources.
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//Here is an example that i’ve seen in the wild. It just converts ints into other types.
extension Int {
public var g: CGFloat { return CGFloat(self) }
public var d: Double { return Double(self) }
public var f: Float { return Float(self) }
public var b: Int8 { return Int8(self) }
public var ub: UInt8 { return UInt8(self) }
public var s: Int16 { return Int16(self) }
public var us: UInt16 { return UInt16(self) }
public var i: Int32 { return Int32(self) }
public var ui: UInt32 { return UInt32(self) }
public var ul: UInt { return UInt(self) }
public var ll: Int64 { return Int64(self) }
public var ull: UInt64 { return UInt64(self) }
}
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Computed properties do not have to be used for code organization. They are also great for dealing with values that are constantly changing.
Originally published 04/17/2021 @ https://pittcsc.org/ Discord
Published here on 09/08/2022. Blog published date reflects the original date of publication.
